WPTV-TV (channel 5) is a television station in West Palm Beach, Florida, United States, affiliated with NBC. It is owned by the E. W. Scripps Company alongside WHDT (channel 9), an independent station licensed to Stuart. Scripps also provides certain services to Fox affiliate WFLX (channel 29) under a shared services agreement (SSA) with Gray Media. The stations share studios on Banyan Boulevard in downtown West Palm Beach; WPTV-TV's transmitter is located in Lake Worth along US 441.

Channel 5 began broadcasting as WJNO-TV on August 22, 1954. It broadcast from a former greenhouse in Palm Beach and was the first VHF television station in the area. The station was sold to John Phipps in 1956, becoming WPTV, and to Scripps in 1961. It moved its studios to West Palm Beach in 1971, relocating to its present site in 2001. An NBC affiliate from the outset, WPTV has spent much of its history as the news ratings leader in the market, though in the 2020s, WPBF has challenged it and surpassed it in some time periods.

In 1952, channel 5 was allocated to West Palm Beach by the Federal Communications Commission (FCC). Two groups applied. One was WJNO (1230 AM), a West Palm Beach radio station that had been waiting for the FCC to lift its multi-year freeze on new television station licenses to make an application. The other was Palm Beach Television, a consortium that counted Theodore Granik—creator of The American Forum of the Air—among its stockholders. On November 4, 1953, the two groups combined their bids, ending the contest and receiving a construction permit. Palm Beach Television changed its name to WJNO-TV, Inc., and joined forces with WJNO to put the new station on the air.

WJNO-TV began broadcasting on August 22, 1954. Frank Folsom, president of the Radio Corporation of America, put the station formally on air and launched a two-hour dedication that included appearances from stars Dorothy Sarnoff, Vaughn Monroe, Eddy Arnold, Lou Monte, and Paul Gilbert. It was an affiliate of NBC. Studios were in Palm Beach at the Palm Beach Playhouse. The studio had previously functioned as the greenhouse of the Royal Poinciana Hotel. WJNO-TV was the first VHF television station in the city, which already had a UHF outlet: WIRK-TV on channel 21, which started in September 1953. WTVJ in Miami, whose signal also covered the Palm Beaches, dropped its remaining NBC programming a month later. West Palm Beach gained a second VHF station, WEAT-TV (channel 12, now WPEC), in 1955; it was an ABC affiliate. WIRK-TV folded in 1956, and channel 5 aired some CBS programs.

In 1956, WJNO-TV, Inc. sold the station to John H. Phipps, owner of WCTV serving Tallahassee. When the sale closed in November, channel 5 changed call signs to WPTV. Phipps sold the station for $2 million in 1961 to Scripps-Howard Broadcasting, making it the fourth Scripps-Howard television station.

In the early 1960s, WPTV made two efforts to improve its signal and expand its coverage area. When Phipps filed to sell the station to Scripps-Howard, WPTV also filed to move its transmitter from Lake Park to a site near US 441 and Lantana Road in Lake Worth, with a new, 1,031-foot (314 m) tower. The proposed relocation, as well as a similar application by WEAT-TV, alarmed the Miami stations, who feared an incursion by WPTV and WEAT-TV into areas of Broward and Dade counties that previously were only to receive the three commercial stations in Miami. The FCC approved the tower in February 1962, and WPTV began broadcasting from the site that September. Not long after, WPTV made a second and more controversial tower proposal. It proposed building a 2,000-foot (610 m) tower at Boca Raton, further south than the Lake Worth site. This would have been the tallest television tower in Florida. Despite securing support from the Palm Beach County school board and Florida Atlantic University, both of which planned new educational TV stations, the new tower posed a further threat to the Miami TV stations by extending a city-grade picture further south into south Broward and Dade. It also faced an uphill battle obtaining federal approval. The FCC and Federal Aviation Administration (FAA) had issued policies that required broadcasters seeking to build towers over 2,000 feet in height to overcome what Broadcasting magazine called "a virtual ban". The Aircraft Owners and Pilots Association opposed the tower plan, which it believed to create "an unacceptable hazard to air navigation", while six Miami and Fort Lauderdale stations objected to the increased competition and potential to hurt the development of UHF telecasting in South Florida. Miami NBC affiliate WCKT also objected to the potential overlap of stations carrying NBC programming. The application remained pending until WPTV moved to dismiss it in 1968.

By the end of the 1960s, WPTV had outgrown the former greenhouse in Palm Beach; Jerry Renninger of The Palm Beach Post-Times described the studio as "dark" and "crowded" and the newsroom as "a narrow, corridor-like room", and the building was developing structural problems. In 1969, WPTV purchased a waterfront plot of land across the Intracoastal Waterway in West Palm Beach, at the west end of the Flagler Memorial Bridge. Ground on the 20,000-square-foot (1,900 m²) facility was broken in August 1970, and WPTV moved operations at the end of May 1971.

During the late 1970s and early 1980s, WPTV remained number one in the West Palm Beach market in spite of the network's number-three status and ratings struggles. WPTV's popularity was such that NBC network programming outperformed its national average; in 1990, even weak parts of NBC's lineup on a national level, such as soap operas and the NBC Nightly News, rated first in West Palm Beach. For much of the Flagler Drive period, between 1981 and 1998, WPTV was run by general manager Bill Brooks, a former Roman Catholic priest who had previously served as the station's public service director.